﻿using System;

namespace ObjectTest
{
    class ObjectTest
    {
        static void Main(string[] args)
        {
            Person first = new Person("Ivan");
            Person second = new Person("Petar", 12);
            Person third = new Person("Gosho", null);
            Console.WriteLine(first);
            Console.WriteLine(second);
            Console.WriteLine(third);
        }
    }
}